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Appeared over Show Low,AZ. 9-22-08 about 10 am. Wind was blowing quite strongly in the upper atmosphere.They would appear as oval shaped blobs coming from the west, start getting holes and then eventually just turn into wisp like spider webs. They were colored, as if a rainbow was in the cloud. There were also regular clouds, but the strange clouds only lasted maybe 15-20minutes. link

The photo (above) was captured by photographer Mick Petroff near the Gulf of Carpenteria. These strange, tubular clouds can grow to be 600 miles long (!!) and move at up to 35 kilometres an hour, causing havoc for aircraft.

The clouds are known as “Morning Glory” and appear in autumn over a remote town in Queensland called Burketown.